Open-source release: pipeline code, raw logs, derived data, licences, tests

Adds src/ (scripts, raw measurement logs, derived data, report source),
tests/, LICENSE (MIT, code) and LICENSE-DATA.md (CC BY 4.0 for the survey's
data; third-party terms). The report is updated to the current site; the
v1 and v2 data hand-off files are unchanged.

Co-Authored-By: Claude Opus 5.5 (1M context) <noreply@anthropic.com>

src/fetch_raw.sh

@@ -0,0 +1,39 @@
+#!/usr/bin/env bash
+# Download the third-party inputs that this repository does not redistribute.
+#   raw/tg/   TeleGeography Submarine Cable Map (cables.py, network.py, build.py, export.py)
+#   raw/wn/   WonderNetwork 2020-07-19/20 ping archive (analyze_wn.py)
+#   raw/bgp/  RouteViews prefix2as, RIPE NCC AS names, PeeringDB (asmap.py)
+# The survey used the TeleGeography data as served on 2026-10-23; raw/tg.sha256
+# lists that snapshot. Later downloads may differ and change results slightly.
+set -euo pipefail
+cd "$(dirname "$0")"
+UA="cable-latency-survey/1.0 (+https://pingstats.aethercosmology.com)"
+get() { curl -sSf -A "$UA" --retry 3 -o "$1" "$2"; }
+mkdir -p raw/tg/cables raw/wn raw/bgp
+
+TG=https://www.submarinecablemap.com/api/v3
+get raw/tg/cable-geo.json "$TG/cable/cable-geo.json"
+get raw/tg/landing-point-geo.json "$TG/landing-point/landing-point-geo.json"
+python3 - "$TG" "$UA" <<'PY'
+import json, sys, time, urllib.request
+tg, ua = sys.argv[1], sys.argv[2]
+ids = sorted({f["properties"]["id"] for f in json.load(open("raw/tg/cable-geo.json"))["features"]})
+for n, i in enumerate(ids, 1):
+    req = urllib.request.Request(f"{tg}/cable/{i}.json", headers={"user-agent": ua})
+    open(f"raw/tg/cables/{i}.json", "wb").write(urllib.request.urlopen(req, timeout=60).read())
+    time.sleep(0.2)
+print(f"TeleGeography: {len(ids)} cables")
+PY
+get raw/tg/tga.json "$TG/cable/tasman-global-access-tga-cable.json"
+(cd raw && sha256sum -c --quiet tg.sha256 2>/dev/null && echo "TeleGeography data identical to the 2026-10-23 snapshot") \
+  || echo "note: TeleGeography data differs from the 2026-10-23 snapshot (raw/tg.sha256)"
+
+S3=https://wp-public-data.s3.amazonaws.com/pings
+get raw/wn/pings-2020-07-19-2020-07-20.csv.gz "$S3/pings-2020-07-19-2020-07-20.csv.gz"
+get raw/wn/servers-2020-07-19.csv "$S3/servers-2020-07-19.csv"
+
+get raw/bgp/routeviews-rv2-20261023-0200.pfx2as.gz \
+  https://publicdata.caida.org/datasets/routing/routeviews-prefix2as/2026/10/routeviews-rv2-20261023-0200.pfx2as.gz
+get raw/bgp/asn.txt https://ftp.ripe.net/ripe/asnames/asn.txt
+for t in ixpfx ixlan ix; do get "raw/bgp/pdb_$t.json" "https://www.peeringdb.com/api/$t"; sleep 4; done
+echo "done; PeeringDB and AS names are current, not the 2026-10-27 copies used for data/asmap.json"